Guests wearing green can enjoy a FREE O’riginal Glazed Doughnut from March 15th to 17th! Krispy Kreme will bring back the popular O’riginal Glazed Doughnut – an Original Glazed® Doughnut gone green – available individually and by the dozen. Guests wearing green who visit Krispy Kreme in-shop or via drive-thru during March 15th to 17th can receive one FREE O’riginal Glazed Doughnut, no purchase necessary.